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He added that some of the more popular American cannabis brands were endorsed by celebrities and rappers including heavyweight legend Mike Tyson whose cannabis ranch in California is called the Tyson Cultivation School.

The dealer said: “There’s one rapper called MC Berner and his ‘Girl Scout Cookie” flavoured cannabis is the most sought after in the whole world and you can get it on the streets of Birmingham for up to 90 a gram.”

According to the latest British Crime Survey in 2017 about one in 15 people aged 16-59 in the West Midlands said they had taken cannabis in the last year.

Last year we told how a brand-new form of super-strength cannabis was hitting the UK.

Shatter, also known as Butane Hash Oil (BHO), is made by using large amounts of highly flammable butane gas.

That helps strip THC – the active ingredient in cannabis – out of the plant and leaves a glass-like extract that hardens to give the appearance of cooled caramel or honeycomb.